Registers

Registers

1. MAR

   • Holds the memory location of the data that needs to be accessed.
     • It can hold either a data address or an instruction address.

2. ACC

   • This is where arithmetic and logic calculations are stored.

3. MDR

   • Holds contents of the memory which is to be transferred.

4. CU

   • Tells the computer how to respond to the program's instruction.

5. CIR

   • Holds the current instruction to be executed, having being fetched from the memory.

6. ALU

   • Used to perform arithmetic and logic operations.